"This system is only 4.1 (4 satellite speakers and 1 subwoofer). These do NOT have a digital audio connection, but an analogue cable, like most. They only have a front and a rear audio 3.5mm jacks for 2 channel sound, however only 1 can be used, but for the best sound, 2 is recommended. What is annoying is that all the wires come threw the control center (not the power), meaning that there is more mess on the desk."